GIS sulfur hexafluoride detector (detector)

1. Overview

GIS sulfur hexafluorideThe detector detects combustible and toxic gases in the atmospherecontinuous24hourOnline detectionAnd sound and light alarm，Not only does it control the concentration of gases in special occasions, but it also has a warning effect on gas leaks in hazardous sites，Timely protect the safety of life and property on various sites. detectorusetallaccuracyCombining sensors with high-speed and high-precision processing circuits,It has the advantages of stable signal, high accuracy, and good repeatabilityAnd it adopts explosion-proof design, suitable for various hazardous occasions. The instrument outputs various standard signals and is compatible with various alarm systemsPLC、DCSWaiting for the control system. Instruments are widely used in industries such as petroleum, chemical, metallurgy, fire protection, coal mining, electricity, ships, environmental protection, telecommunications, and medical care.

2. Technical features

Ø Adopting high-speed and high-precision processing circuits to achieve fast and accurate measurement of instruments

Ø Three wire 4-20mA signal and RS485 digital signal output, capable of real-time communication with computers

Ø Plug and play international standard intelligent sensor, easy to maintain on site

Ølarge screenLCDDisplay, function arrow indication makes operation clear at a glance

Equipped with infrared remote control, parameter adjustment can be achieved without opening the cover

Ø Full range temperature digital compensation

Remote control or buttons enable the detector to be freely configured on site, such as viewing, setting, and calibration

Ø Intrinsic safety circuit and explosion-proof enclosure design, on-site maintenance is safe, convenient, and fast

3. Technical parameters

Detection method: diffusion type

Working mode: online, continuous work

Working voltage: DC 12-24V
Working current: Oxygen and toxic gases<50mA (Max)

Combustible gas<150mA (Max)
Output signal: 4-20 mA standard current loop signal output;

RS485 bus type standard signal output;

Power bus type standard signal output;

Exterior material: Die cast aluminum

Dimensions: 181 × 136 × 93mm (with display)

Weight: Displayed as ≤ 1.5kg

Connection distance:>500m

Protection level: IP65

Installation method: Wall mounted

Explosion proof form: Explosion proof type

Explosion proof grade: IIC

Explosion proof mark: Ex d IIC T6 Gb

Inlet: Hexagonal wiring explosion-proof bolt

4. Choose the installation location

in order toAchieve optimal detection resultsThe gas detection transmitter must be installed in the correct detection position.

The following factors need to be considered comprehensively to determine the correct installation position:

1) The density of gas leakage points and the specific gravity of the measured gas,

2) The impact of surrounding buildings,

3) The age of production equipment, wind direction, and annual meteorological conditions, etc,

4) Consider the position of doors and windows indoors.

Selection guide:

A. The instrument should maintain an appropriate distance from the possible leakage point of the measured gas. Too close, the reaction speed is fast, but if there is frequent leakage, there may be too many alarms, or being in an alarm state for a long time may cause paralysis.

B. The instrument should be installed in the downwind direction of the leakage point.

C. When installing indoors, if the leakage source is outdoors, the instrument should be installed at the air inlet.

D. The installation height should be determined based on the specific gravity of the measured gas and air. When the proportion of leaked gas source is heavy, the installation height is low; When the proportion of leaked gas source is light, the installation height is higher.

E. The number of instruments should be selected based on the possible leakage points of the tested gas, the frequency and duration of personnel presence, in order to achieve the best economic effect.

F. If the equipment is outdated, consider adding more test points.

G. The instrument should be protected from radiation from high-temperature heat sources, as high or low temperatures can affect the effectiveness and lifespan of the sensor.

Definition of 5 Terminals

The arrangement of wiring terminals may vary depending on the communication or signal output method of the gas transmitter ordered by the user. The following are the detailed meanings of each terminal symbol:

sign	V	S	G
significance	Positive pole of power cord	4-20 mA signal line	power line negative electrode

1. Sound and light alarm interface

2. Relay interface

3. Display board interface

4. Sensor module interface

5.24V power supply and 4-20mA current loop communication terminal block